CVE-2020-25820 - Server-Side Request Forgery (SSRF)

Severity

65%

Complexity

27%

Confidentiality

60%

BigBlueButton before 2.2.7 allows remote authenticated users to read local files and conduct SSRF attacks via an uploaded Office document that has a crafted URL in an ODF xlink field.

CVSS 3.1 Base Score 6.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

CVSS 2.0 Base Score 4. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:S/C:P/I:N/A:N).

Overview

First reported 4 years ago

2020-10-21 13:15:00

Last updated 4 years ago

2020-10-29 16:22:00

Affected Software

BigBlueButton BigBlueButton

References

http://packetstormsecurity.com/files/159667/BigBlueButton-2.2.25-File-Disclosure-Server-Side-Request-Forgery.html

https://github.com/bigbluebutton/bigbluebutton/commit/71fe1eac1e5bd73a2cd44bd79c001086b250e435

https://github.com/bigbluebutton/bigbluebutton/compare/v2.2.26...v2.2.27

https://www.golem.de/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-2010-151610.html

https://www.redteam-pentesting.de/advisories/rt-sa-2020-005

http://packetstormsecurity.com/files/159667/BigBlueButton-2.2.25-File-Disclosure-Server-Side-Request-Forgery.html

Exploit, Third Party Advisory

https://github.com/bigbluebutton/bigbluebutton/commit/71fe1eac1e5bd73a2cd44bd79c001086b250e435

Patch, Third Party Advisory

https://github.com/bigbluebutton/bigbluebutton/compare/v2.2.26...v2.2.27

Release Notes, Third Party Advisory

https://www.golem.de/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-2010-151610.html

Exploit, Third Party Advisory

https://www.redteam-pentesting.de/advisories/rt-sa-2020-005

Third Party Advisory

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